Well after further measuring and lots of agonizing I decided to call the manufacturer before giving it a try myself.

I just wasn't comfortable with the amount of metal that needed to be removed. The OD of the threads on the take off barrel were .014 smaller than the new one was . I have no idea if I needed to get to the take off size (probably not) or what the measurement from root to crest is on barrel threads, but I didn't feel like screwing it up. So I called.

They were very helpful and apologetic. told me to package it up with the action and they'd make sure it was right. They even covered the cost of shipping it there.

So far so good.

Chris

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Ignorance can be treated with education, sadly there is no cure for stupidity.